1
ASAuthorizationAppleIDProvider *appleIDProvider = [ASAuthorizationAppleIDProvider new];
2
    ASAuthorizationAppleIDRequest *request = appleIDProvider.createRequest;
3
    [request setRequestedScopes:@[ASAuthorizationScopeFullName,ASAuthorizationScopeEmail]];
4

5
    //需要考虑已经登录过的用户，可以直接使用keychain密码来进行登录-这个很牛皮。。。
6
    ASAuthorizationPasswordProvider *appleIDPasswordProvider = [ASAuthorizationPasswordProvider new];
7
    ASAuthorizationPasswordRequest *passwordRequest = appleIDPasswordProvider.createRequest;
8

9
    ASAuthorizationController *appleSignController = [[ASAuthorizationController alloc] initWithAuthorizationRequests:@[request]];
10
    appleSignController.delegate = self;
11
    appleSignController.presentationContextProvider = self;
12
    [appleSignController performRequests];

1
- (ASPresentationAnchor)presentationAnchorForAuthorizationController:(ASAuthorizationController *)controller {
2
    return self.view.window;
3
}

1
- (void)authorizationController:(ASAuthorizationController *)controller didCompleteWithError:(NSError *)error {
2
    //Sign with Apple 失败
3

4
}

1
- (void)authorizationController:(ASAuthorizationController *)controller didCompleteWithAuthorization:(ASAuthorization *)authorization {
2
    //Sign with Apple 成功
3
}

1
if ([authorization.provider isKindOfClass:[ASAuthorizationPasswordProvider class]]) {
2
        //取的keychain中的用户名密码，这里可以直接登录了，然后返回正常的登录结果即可
3
        //此时并不是使用Sign with Apple
4
        ASPasswordCredential *passwordCredential = authorization.credential;
5
        if ([passwordCredential isKindOfClass:[ASPasswordCredential class]]) {
6
            NSString *userName = passwordCredential.user;
7
            NSString *password = passwordCredential.password;
8

9
            //直接使用邮箱登录
10

11
        }
12

13
    } else if ([authorization.provider isKindOfClass:[ASAuthorizationAppleIDProvider class]]) {
14
            //此时为使用Sign With Apple 方式登录
15
            //继续进行客户端后台登录验证
16
    }

1
/**
2
 苹果用户唯一标识符，该值在同一个开发者账号下的所有 App 下是一样的，开发者可以用该唯一标识符与自己后台系统的账号体系绑定起来
3
 */
4
@property (nonatomic, copy) NSString *userIdentifier;
5

6
/**
7
 苹果返回的该用户的状态
8
 */
9
@property (nonatomic, assign) ASUserDetectionStatus realUserStatus;
10

11
/**
12
 用户邮箱，注意这里用户可以选择隐藏自己的邮箱地址的，因此这个值不一定是真正的邮箱地址
13
 */
14
@property (nonatomic, copy) NSString *email;
15

16
/**
17
 token 给后台向苹果服务器验证使用
18
 */
19
@property (nonatomic, copy) NSString *token;
20

21
/**
22
 authorizationCodeString 给后台向苹果服务器验证使用 这个有时效性 五分钟之内有效
23
 */
24
@property (nonatomic, copy) NSString *authorizationCode;

1
typedef NS_ENUM(NSInteger, ASUserDetectionStatus) {
2
    ASUserDetectionStatusUnsupported,
3
    ASUserDetectionStatusUnknown,
4
    ASUserDetectionStatusLikelyReal,
5
};

1
ASAuthorizationAppleIDProvider *provider = [ASAuthorizationAppleIDProvider new];
2
        [provider getCredentialStateForUserID:_appleUser.userIdentifier completion:^(ASAuthorizationAppleIDProviderCredentialState credentialState, NSError * _Nullable error) {
3
            switch (credentialState) {
4
                case ASAuthorizationAppleIDProviderCredentialRevoked:
5
                    //用户重新登录了其他的apple id
6
                    //登出+提示
7
                    break;
8
                case ASAuthorizationAppleIDProviderCredentialAuthorized:
9
                    //该userid apple id 登录状态良好
10
                    //继续用户行为即可
11
                    break;
12
                case ASAuthorizationAppleIDProviderCredentialNotFound:
13
                    //该userid apple id 登录找不到
14
                    //用户在设置-appleid header-密码与安全性-使用您 Apple ID的App 中将网易新闻的禁止掉了
15
                    break;
16
                default:
17

18
                    break;
19
            }
20
        }];

1
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleAppleIdHasChanged) name:ASAuthorizationAppleIDProviderCredentialRevokedNotification object:nil];